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Regional variations in cardiovascular mortality in Canada
Woganee A Filate1, Helen L Johansen, Courtney C Kennedy
1Department of Public Health Sciences, University of Toronto, Toronto, Canada.
The Canadian Journal of Cardiology
|October 23, 2003
Summary
Regional variations in heart disease mortality in Canada are significant. Smoking and unemployment rates are key factors contributing to these differences, highlighting the need to address social determinants of health.
Area of Science:
- Public Health
- Epidemiology
- Cardiovascular Health
Background:
- Cardiovascular disease (CVD) is Canada's leading cause of death, with significant unexplained regional disparities in mortality rates.
- Previous research has not comprehensively examined the link between health region characteristics and these mortality variations.
Purpose of the Study:
- To investigate the contribution of traditional cardiac risk factors, social determinants of health, and community characteristics to regional variations in heart disease mortality across Canada.
Main Methods:
- Utilized age-standardized mortality data for cardiovascular disease and ischemic heart disease (1995-1997) from Statistics Canada.
- Incorporated health region characteristics from Canadian Community Health Survey (2000-2001), 1996 Canadian Census, and Labour Force Survey.
- Employed linear regression and analyses of variance to identify associations between region characteristics and mortality rates.
Main Results:
- Observed significant regional variations in cardiovascular disease and ischemic heart disease mortality rates per 100,000 population.
- Identified higher mortality rates in Newfoundland and Labrador and lower rates in Nunavut and the Northwest Territories.
- Found that health region smoking and unemployment rates were the most significant factors associated with cardiovascular disease and ischemic heart disease mortality.
Conclusions:
- Confirmed substantial regional differences in age-standardized cardiovascular disease and ischemic heart disease mortality at both provincial/territorial and health region levels.
- Emphasized that reducing cardiovascular disease and ischemic heart disease mortality necessitates addressing traditional risk factors like smoking and broader determinants of health, such as unemployment rates.